ACRS Aclaris Therapeutics, Inc.

NASDAQ
$5.64

Aclaris Therapeutics, Inc. (ACRS) Institutional Ownership

What the institutions did with ACRS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
162
filed both this quarter and last
Managers holding
148
+13 on the quarter
Buyers
95
27 opened new
Sellers
45
14 sold out entirely
Buyer share
67.9%
of managers who traded it
Breadth
+35.7
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
RA CAPITAL MANAGEMENT, L.P. 12.7M 10.5%
BML Capital Management, LLC 12.0M 9.9%
BlackRock, Inc. 10.0M 8.3%
Deep Track Capital, LP 9.3M 7.7%
Vivo Capital, LLC 6.7M 5.5%
VANGUARD CAPITAL MANAGEMENT LLC 5.8M 4.8%
Frazier Life Sciences Management, L.P. 4.9M 4.1%
Rock Springs Capital Management LP 4.3M 3.6%
ADAGE CAPITAL PARTNERS GP, L.L.C. 4.1M 3.4%
Decheng Capital LLC 4.0M 3.3%
Kalehua Capital Management LLC 3.7M 3.0%
STATE STREET CORP 3.3M 2.7%
GEODE CAPITAL MANAGEMENT, LLC 3.2M 2.6%
BRAIDWELL LP 2.1M 1.8%
Balyasny Asset Management L.P. 2.0M 1.7%
SILVERARC CAPITAL MANAGEMENT, LLC 1.9M 1.6%
CITADEL ADVISORS LLC 1.8M 1.5%
Jones Hill Capital LP 1.8M 1.5%
ACADIAN ASSET MANAGEMENT LLC 1.6M 1.4%
Palo Alto Investors LP 1.6M 1.3%
Woodline Partners LP 1.6M 1.3%
VANGUARD PORTFOLIO MANAGEMENT LLC 1.5M 1.2%
PANAGORA ASSET MANAGEMENT INC 1.4M 1.1%
Connor, Clark & Lunn Investment Management Ltd. 1.2M 1.0%
MPM BIOIMPACT LLC 1.0M 0.9%

Largest changes

Manager Action Previous Current Change
RA CAPITAL MANAGEMENT, L.P. Increased 6.8M 12.7M +5.9M
BlackRock, Inc. Increased 7.4M 10.0M +2.6M
MORGAN STANLEY Reduced 2.7M 134.1K -2.6M
BML Capital Management, LLC Reduced 14.3M 12.0M -2.3M
SILVERARC CAPITAL MANAGEMENT, LLC New 0 1.9M +1.9M
Jones Hill Capital LP New 0 1.8M +1.8M
Balyasny Asset Management L.P. Reduced 3.4M 2.0M -1.3M
STATE STREET CORP Increased 2.0M 3.3M +1.2M
PANAGORA ASSET MANAGEMENT INC Increased 502.3K 1.4M +853.9K
GEODE CAPITAL MANAGEMENT, LLC Increased 2.4M 3.2M +766.4K
MARSHALL WACE, LLP Sold Out 713.0K 0 -713.0K
MPM BIOIMPACT LLC Increased 391.9K 1.0M +650.5K
VANGUARD CAPITAL MANAGEMENT LLC Increased 5.2M 5.8M +650.4K
Monashee Investment Management LLC Sold Out 500.0K 0 -500.0K
Kalehua Capital Management LLC Increased 3.2M 3.7M +494.8K
CITADEL ADVISORS LLC Reduced 2.2M 1.8M -487.2K
D. E. Shaw & Co., Inc. Reduced 900.8K 414.5K -486.3K
BRAIDWELL LP Increased 1.7M 2.1M +443.2K
ORBIMED ADVISORS LLC New 0 421.5K +421.5K
Tetragon Partners GP Ltd New 0 400.0K +400.0K
RENAISSANCE TECHNOLOGIES LLC Increased 502.6K 817.5K +314.9K
Logos Global Management LP Reduced 500.0K 200.0K -300.0K
VANGUARD FIDUCIARY TRUST CO Increased 628.9K 907.2K +278.3K
NORTHERN TRUST CORP Increased 728.2K 998.8K +270.5K
TWO SIGMA INVESTMENTS, LP Reduced 395.6K 133.1K -262.6K
BRIDGEWAY CAPITAL MANAGEMENT, LLC Reduced 330.0K 75.0K -255.0K
MILLENNIUM MANAGEMENT LLC Reduced 756.1K 523.9K -232.2K
MACKENZIE FINANCIAL CORP Sold Out 213.4K 0 -213.4K
Connor, Clark & Lunn Investment Management Ltd. Reduced 1.4M 1.2M -208.5K
ADAGE CAPITAL PARTNERS GP, L.L.C. Increased 3.9M 4.1M +200.0K
Qube Research & Technologies Ltd Sold Out 194.5K 0 -194.5K
VANGUARD PORTFOLIO MANAGEMENT LLC Reduced 1.7M 1.5M -190.3K
Nuveen, LLC Increased 118.0K 278.4K +160.4K
Atom Investors LP New 0 148.9K +148.9K
Rock Springs Capital Management LP Reduced 4.5M 4.3M -142.1K
FMR LLC Increased 176.4K 313.9K +137.5K
ADAR1 Capital Management, LLC Sold Out 132.4K 0 -132.4K
Assenagon Asset Management S.A. Increased 177.3K 309.1K +131.8K
Woodline Partners LP Increased 1.5M 1.6M +125.4K
AMERICAN CENTURY COMPANIES INC Sold Out 118.7K 0 -118.7K
CITIGROUP INC Increased 7.8K 117.8K +110.0K
SUPERSTRING CAPITAL MANAGEMENT LP Reduced 366.5K 257.7K -108.8K
Hudson Bay Capital Management LP Increased 16.8K 120.0K +103.2K
ACADIAN ASSET MANAGEMENT LLC Increased 1.5M 1.6M +101.7K
Verition Fund Management LLC New 0 98.0K +98.0K
XTX Topco Ltd Sold Out 97.8K 0 -97.8K
HighTower Advisors, LLC Reduced 305.8K 217.5K -88.3K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Increased 261.0K 346.1K +85.1K
SEI INVESTMENTS CO Reduced 217.2K 138.8K -78.4K
Voleon Capital Management LP New 0 77.2K +77.2K
Bank of New York Mellon Corp Increased 207.0K 282.6K +75.6K
WELLS FARGO & COMPANY/MN Increased 36.3K 108.6K +72.4K
RHUMBLINE ADVISERS Increased 75.4K 143.2K +67.8K
STRS OHIO Increased 16.0K 81.4K +65.4K
PRICE T ROWE ASSOCIATES INC /MD/ Increased 156.7K 221.6K +64.9K
Quadrature Capital Ltd Reduced 72.5K 10.9K -61.6K
Vanguard Global Advisers, LLC Increased 68.8K 129.1K +60.3K
Russell Investments Group, Ltd. Increased 308.2K 365.1K +56.9K
Creative Planning Increased 152.1K 206.6K +54.6K
CenterBook Partners LP Increased 66.6K 118.2K +51.6K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.